实例33:曲线转换按钮
h0=figure('toolbar','none',...
'position',[200 150 450 250],...
'name','实例33');
x=0:0.5:2*pi;
y=sin(x);
h=plot(x,y);
grid on
huidiao=[...
'if i==1,',...
'i=0;,',...
'y=cos(x);,',...
'delete(h),',...
'set(hm,''string'',''正弦函数''),',...
'h=plot(x,y);,',...
'grid on,',...
'else if i==0,',...
'i=1;,',...
'y=sin(x);,',...
'set(hm,''string'',''余弦函数''),',...
'delete(h),',...
'h=plot(x,y);,',...
'grid on,',...
'end,',...
'end'];
hm=uicontrol(gcf,'style','pushbutton',...
'string','余弦函数',...
'callback',huidiao);
i=1;
set(hm,'position',[250 20 60 20]);
set(gca,'position',[0.2 0.2 0.6 0.6])
title('按钮的使用')
hold on
实例34:栅格控制按钮
h0=figure('toolbar','none',...
'position',[200 150 450 250],...
'name','实例34');
x=0:0.5:2*pi;
y=sin(x);
plot(x,y)
huidiao1=[...
'set(h_toggle2,''value'',0),',...
'grid on,',...
];
huidiao2=[...
'set(h_toggle1,''value'',0),',...
'grid off,',...
];
h_toggle1=uicontrol(gcf,'style','togglebutton',...
'string','grid on',...
'value',0,...
'position',[20 45 50 20],...
'callback',huidiao1);
h_toggle2=uicontrol(gcf,'style','togglebutton',...
'string','grid off',...
'value',0,...
'position',[20 20 50 20],...
'callback',huidiao2);
set(gca,'position',[0.2 0.2 0.6 0.6])
title('开关按钮的使用')
实例35:编辑框的使用
h0=figure('toolbar','none',...
'position',[200 150 350 250],...
'name','实例35');
f='Please input the letter';
huidiao1=[...
'g=upper(f);,',...
'set(h2_edit,''string'',g),',...
];
huidiao2=[...
'g=lower(f);,',...
'set(h2_edit,''string'',g),',...
];
h1_edit=uicontrol(gcf,'style','edit',...
'position',[100 200 100 50],...
'HorizontalAlignment','left',...
'string','Please input the letter',...
'callback','f=get(h1_edit,''string'');',...
'background','w',...
'max',5,...
'min',1);
h2_edit=uicontrol(gcf,'style','edit',...
'HorizontalAlignment','left',...
'position',[100 100 100 50],...
'background','w',...
'max',5,...
'min',1);
h1_button=uicontrol(gcf,'style','pushbutton',...
'string','小写变大写',...
'position',[100 45 100 20],...
'callback',huidiao1);
h2_button=uicontrol(gcf,'style','pushbutton',...
'string','大写变小写',...
'position',[100 20 100 20],...
'callback',huidiao2);
实例36:弹出式菜单
h0=figure('toolbar','none',...
'position',[200 150 450 250],...
'name','实例36');
x=0:0.5:2*pi;
y=sin(x);
h=plot(x,y);
grid on
hm=uicontrol(gcf,'style','popupmenu',...
'string',...
'sin(x)|cos(x)|sin(x)+cos(x)|exp(-sin(x))',...
'position',[250 20 50 20]);
set(hm,'value',1)
huidiao=[...
'v=get(hm,''value'');,',...
'switch v,',...
'case 1,',...
'delete(h),',...
'y=sin(x);,',...
'h=plot(x,y);,',...
'grid on,',...
'case 2,',...
'delete(h),',...
'y=cos(x);,',...
'h=plot(x,y);,',...
'grid on,',...
'case 3,',...
'delete(h),',...
'y=sin(x)+cos(x);,',...
'h=plot(x,y);,',...
'grid on,',...
'case 4,',...
'delete(h),',...
'y=exp(-sin(x));,',...
'h=plot(x,y);,',...
'grid on,',...
'end'];
set(hm,'callback',huidiao)
set(gca,'position',[0.2 0.2 0.6 0.6])
title('弹出式菜单的使用')
实例37:滑标的使用
h0=figure('toolbar','none',...
'position',[200 150 450 250],...
'name','实例37');
[x,y]=meshgrid(-8:0.5:8);
r=sqrt(x.^2+y.^2)+eps;
z=sin(r)./r;
h0=mesh(x,y,z);
h1=axes('position',...
[0.2 0.2 0.5 0.5],...
'visible','off');
htext=uicontrol(gcf,...
'units','points',...
'position',[20 30 45 15],...
'string','brightness',...
'style','text');
hslider=uicontrol(gcf,...
'units','points',...
'position',[10 10 300 15],...
'min',-1,...
'max',1,...
'style','slider',...
'callback',...
'brighten(get(hslider,''value''))');
实例38:多选菜单
h0=figure('toolbar','none',...
'position',[200 150 450 250],...
'name','实例38');
[x,y]=meshgrid(-8:0.5:8);
r=sqrt(x.^2+y.^2)+eps;
z=sin(r)./r;
h0=mesh(x,y,z);
hlist=uicontrol(gcf,'style','listbox',...
'string','default|spring|summer|autumn|winter',...
'max',5,...
'min',1,...
'position',[20 20 80 100],...
'callback',[...
'k=get(hlist,''value'');,',...
'switch k,',...
'case 1,',...
'colormap default,',...
'case 2,',...
'colormap spring,',...
'case 3,',...
'colormap summer,',...
'case 4,',...
'colormap autumn,',...
'case 5,',...
'colormap winter,',...
'end']);
实例39:菜单控制的使用
h0=figure('toolbar','none',...
'position',[200 150 450 250],...
'name','实例39');
x=0:0.5:2*pi;
y=cos(x);
h=plot(x,y);
grid on
set(gcf,'toolbar','none')
hm=uimenu('label','example');
huidiao1=[...
'set(hm_gridon,''checked'',''on''),',...
'set(hm_gridoff,''checked'',''off''),',...
'grid on'];
huidiao2=[...
'set(hm_gridoff,''checked'',''on''),',...
'set(hm_gridon,''checked'',''off''),',...
'grid off'];
hm_gridon=uimenu(hm,'label','grid on',...
'checked','on',...
'callback',huidiao1);
hm_gridoff=uimenu(hm,'label','grid off',...
'checked','off',...
'callback',huidiao2);
实例40:UIMENU菜单的应用
h0=figure('toolbar','none',...
'position',[200 150 450 250],...
'name','实例40');
h1=uimenu(gcf,'label','函数');
h11=uimenu(h1,'label','轮廓图',...
'callback',[...
'set(h31,''checked'',''on''),',...
'set(h32,''checked'',''off''),',...
'[x,y,z]=peaks;,',...
'contour3(x,y,z,30)']);
h12=uimenu(h1,'label','高斯分布',...
'callback',[...
'set(h31,''checked'',''on''),',...
'set(h32,''checked'',''off''),',...
'mesh(peaks);,',...
'axis tight']);
h13=uimenu(h1,'label','Sinc函数',...
'callback',[...
'set(h31,''checked'',''on''),',...
'set(h32,''checked'',''off''),',...
'[x,y]=meshgrid(-8:0.5:8);,',...
'r=sqrt(x.^2+y.^2)+eps;,',...
'z=sin(r)./r;,',...
'mesh(x,y,z)']);
h2=uimenu(gcf,'label','色彩');
hl2(1)=uimenu(h2,'label','Default',...
'checked','on',...
'callback',...
[...
'set(hl2,''checked'',''off''),',...
'set(hl2(1),''checked'',''on''),',...
'colormap(''default'')']);
hl2(2)=uimenu(h2,'label','spring',...
'callback',...
[...
'set(hl2,''checked'',''off''),',...
'set(hl2(2),''checked'',''on''),',...
'colormap(spring)']);
hl2(3)=uimenu(h2,'label','Summer',...
'callback',...
[...
'set(hl2,''checked'',''off''),',...
'set(hl2(3),''checked'',''on''),',...
'colormap(summer)']);
hl2(4)=uimenu(h2,'label','Autumn',...
'callback',...
[...
'set(hl2,''checked'',''off''),',...
'set(hl2(4),''checked'',''on''),',...
'colormap(autumn)']);
hl2(5)=uimenu(h2,'label','Winter',...
'callback',...
[...
'set(hl2,''checked'',''off''),',...
'set(hl2(5),''checked'',''on''),',...
'colormap(winter)']);
h3=uimenu(gcf,'label','坐标选项');
h31=uimenu(h3,'label','Axis on',...
'callback',...
[...
'axis on,',...
'set(h31,''checked'',''on''),',...
'set(h32,''checked'',''off'')']);
h32=uimenu(h3,'label','Axis off',...
'callback',...
[...
'axis off,',...
'set(h32,''checked'',''on''),',...
'set(h31,''checked'',''off'')']);
实例41:除法计算器
h=figure('toolbar','none',...
'position',[200 150 45
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